postgresql: PostgreSQL: Credential recovery via covert timing channel in MD5 password comparison

A flaw was found in PostgreSQL. This vulnerability, a covert timing channel, exists in the comparison of MD5-hashed passwords during authentication. A remote attacker could exploit this to recover user credentials, gaining unauthorized access to the database. This issue specifically impacts...

UBUNTU-CVE-2026-6475

Symlink following in PostgreSQL pgbasebackup plain format and in pgrewind allows an origin superuser to overwrite local files, e.g. /var/lib/postgres/.bashrc, that hijack the operating system account. It will remain the case that starting the server after these commands implicitly trusts the orig...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: postgresql-13 (UTSA-2026-005376)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-005376 advisory. Integer wraparound in multiple PostgreSQL libpq client library functions allows an application input provider or network peer to cause libpq to undersize an allocati...

CVE-2025-8713 PostgreSQL optimizer statistics can expose sampled data within a view, partition, or child table

PostgreSQL optimizer statistics allow a user to read sampled data within a view that the user cannot access. Separately, statistics allow a user to read sampled data that a row security policy intended to hide. PostgreSQL maintains statistics for tables by sampling data available in columns; this...

Important: postgresql

Issue Overview: Time-of-check Time-of-use TOCTOU race condition in pgdump in PostgreSQL allows an object creator to execute arbitrary SQL functions as the user running pgdump, which is often a superuser. The attack involves replacing another relation type with a view or foreign table. The attack...